Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 rpm.
features
Hardened teeth sprockets afford longer chain and sprocket life
Tolerances meet or exceed ANSI standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Interchangeable with other manufacturers’ Taper bushings
Stocked Heat Treat
Bushing Bore Size [Max]
3.063 in
Hub Dia.
4 1/2 in
Bushing Bore [Max]
2 1/2 in
No. of Teeth
19
Material
Steel
No. of Teeth Rows Strands
1
Pitch Dia.
7.594 in
Material External Use
Steel
No. of Strands Across
1
Material Internal Use
Carbon Steel
Construction Internal
Welded
Martin No.
100BTB19H
Chain Sprocket Number
100
Hub O.D.
4.5 in
Width Across Teeth
1.75 in
Hardened Teeth
With Hardened Teeth
Bore Type
Bushed
O.D.
8.241 in
Bushing Bore [Min]
1/2 in
Single Strand Tooth Thickness
0.692 in
Hub Projection
1.06 in
Length Through Bore
1.75 in
Inch/Metric
Inch
Outside Dia. [Min]
8.2410 in
Bushing Type
Taper Lock
Outside Dia.
8.241 in
Pitch Diameter
7.594 in
Chain Pitch
1.250 in
Type
B
Chain Sprocket Pitch
1.25 in
Caliper Diameter
6.8185 in
Chain No.
100
Overall Length
1 3/4 in
Bushing Series
2517
Tooth Width
0.692 in
Sprocket Style
B
Overall Length Less Threads
N/A
Hub Length
1.06 in
Bore Size [Max]
3.063 in
Weight
8.81 LB
EAN or UPC
697950043753
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